Aeroplane.



L. SUHMIDL;

AEROPLANE.

APPLICATION FILED n.4, 1911.

1,046,028. Patented Dec. 3, i912.

' stadt, Burgleitnergasse 30, Lower Austria,

iv ulated rods in such a way that they are displaced parallel to each other when the wings posed consecutively and extending in the 'that the frontal resistance with closed as adapted to the curvature of the supporting to a monoplane.

mmwre GSGHMIDL, or we. NEUSTAD'I, AUSTRIA-HUNGARY.

AEROPLANE.

Specification of Letters Patent. Patented Dec. 3, 1912.

Application filed April 4, 1911. Serial No. 618,925.

To all whom it may concern:

Be it known that I, LUDWIG SCHMIDL, captain in the Austrian Army, of Wr. Neuin the Empire of Austria-Hungary, have invented an Aeroplane; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The present invention refers to a flying machine of the aeroplane. type, having the ends of thesupporting or other surfaces provided with wings, adapted to be folded and therefore of changeable dimensions, the object being to steer the aeroplane and also to facilitate its starting. These folding wings consist of a series of lamellar portions, dislongitudinal or the transverse direction of the supporting surfaces. These lamellar portions are connected with each other byarticare set, and arrange themselves in a scale like fashion when the wings are closed. By this arrangement of the folding wings, which differs from the arrangement. of the wings heretofore used in that the latter consist of parts which open around a common center of motion like a fan, I obtain the advantage well as with open wings is considerably less- .ened. Furthermore the angle of incldence is maintained, when the wing, which .is

surface, is closed, whereas all single or multiple folding parts turning around a vertical axis are liable to undergo a change of their position in respect to the supportingsurface.

The draw ngs show two different instances of disposition of these folding wings applied In the first instance as shown by Figures 1 and 2, the folding parts, which have in general rectangular shape, are disposed transversely to the longitudinal direction of the supporting surfaces 2, and arrangedconsec- '3 differs from the utively; at the shorter side of the supporting surface they are so arranged that each of them can turnin its own plane around -pivots 19, 20, 21. These folding parts are connected one with the other by a number of articulated transversal rods 22,'so as to form with them a parallelogram. The result is, that, if the wing is set,which is done by one of the known devices as a drawing rod, or the like, the folding parts move in the direction of their plane parallel to each other, and, when the wing is closed, that they dispose themselves in a scale-like fashion as shown by Fig.1, right hand side.

The disposition represented by Figs. 3 and first only in that the folding parts are arranged consecutively in the longitudinal direction of the supporting surface. In thiscase the folding parts are at least in two laces so arranged, that they turn around the rods 22 which intersect them at a right angle whereas the rods themselves are connected with the shorter side of the supporting surface. The results with this arrangement of the folding parts are the same as in the first instance.

' The same arrangement can be adapted in an identical way to the steering tail. What I claim as my invention and desire to secure by Letters Patent is:

1. An aeroplane com'pri mg a rigid supporting and stabilizing plane, a wing on each end of said plane, each wing consisting of a series of adjacent lamellar portions substantially parallel to the supporting surface, each of'said portions being separately pivoted to said plane and arranged to operate in the same, plane with respect to said stabilizing plane, and means for extending and withdrawing said wings.

2. An aeroplane comprising a rigid supporting and stabilifzing plane, a wing on each end of said plane, each wing consisting of a series of adj acent lamellar portions substantially arallel to'the supporting'surface, each of said portions being separately pivoted to said plane, rods connecting said portions, and means for moving said portions on their pivots, simultaneously in' extending and withdrawing them.

8. An aeroplane comprising a rigid supespect to the other portions, either, in the porting and stabilizing plane, a wing on extended or the withdrawn position of the each end of saidplane, each wing consisting Wings.

' of a series of adjacent lalnellar portions, LUDWIG SCHMIDL. 5 each of the portions adapted to be operated Witnesses:

so that it rotates about a separate pivot and AUGUST FUGGER, has a constant parallel displacement with ALBIN SCHILLER. 

